Improvement in governors for steam-engines



ANDREW J. PEAVEY, OF BOSTON, MASSACHUSETTS, ASSIGNOR FOR THREE- FOURTHSOF HIS RIGHT TO GEORGEEPOTTLE, OF SAME PLAGE.

`Letters Patent No. 100,400, dated August 16, 1870. I

IMPROVEMENT vIN' G-,OVERNORS FCR STEAM-ENGINES.

The Schedule referred to in these Letters Patent and making partpf thesame.

To all whom' 'it may concern.-

I, ANDREW J. lnAvnY, of Boston,in the county of Suffolk and State ofMassachusetts, have invented a certain new and usef'ul Improvement inGovernors ibrSteain-Eiigines, Ste., of which the following is aspecification.

Nature and Ohirct 'of thc Invention.

The nature of my invention consists of combining' in a closed vessel,which is filled with some suitable fluid, a revolving diaphragm and aseries of self-adjusting buttresses, the diaphragm heilig driven by abelt'fronl the engine to be regulated, while the. buttressesnre incommunication with a counterbalanoe and cut-olf, the object ofthe devicebeing to take advantage of the flow of fluid caused by the revolvingdiaphragm, z'. c., to use the force due to the current thus causedfurthe purpose oi' giving motion to the bnttresses, and thus to operateupon the cut-olf dcvicc, the force of' said current being proportionalto its velocit-y, and dependent upon the velocity of' the engine.

Description of thc Accompanying Dra-wing. Figure l is a perspectiveview, showing my device with a part of the front head removed, to showmore clearly the interior.

lligure 2 is a cross-section of` the invention. Figui-e3 isalongitudinal vertical section.

` General Description. I construct my invention as follows:

.l1 is a hollow cylinder, to be closed at each end and packed, so as tohold oil or some suitable fluid for the fan-wheel A A A' A to revolvein.

W is a shaft, drivenfby a belt on the pulley W. This shaft-carries thefans A A A A.

l D D is acylinder having open ends, as shown in figs. 1 and 2. Thiscylinder Dis innig looselyon the shai't W', so that it may revolveindependently of it.

D', iigs.1 and 3, is a gear-'wheel attached to and revolving with thecylinder D.

E, figs. l and 3, is a segment-gear hung upon the spindle El and meshingwith the gear-wheelD.

E2 is a counter-balance hung upon the spindle El.

'lbe interior of' the cylinder D is provided with a series ofbuttresses, B B B B, which extend inwardly,

. revolution ofthe fan-wheel causes a fl-ow of' oil against thebuttresses B B B B of' the cylinder D, which action causes the cylinderD to revolve, which transmits.

its motion, through the gear D and segment-gear E, to the spindle El andcounter-balance E.

From inspection of the above, it will be seen that thc force which theflowing fluid exerts against the buttresses B B B B will be dependentupon the velocity of the fan-wheel A A A A, and that thebuttresscylinder D will move with a force also in proportion to thisvelocity, and will be checked in its motion by the counter-balance E2,acting through the shaft El and segment-gear E. Therefore, if', by anysuitable Inechanical device, the shaft E1 be connected to a cut-ofi' orthrottle-valve, it will serve to regulate'tbe speed oi' the engine, &c.

I claim as my invention- The combination of the fan-'wheel A A and thebuttress-cylinder D D, operating in confined fluid, one upon the other,substantially as described, and for the purpose set forth.`

ANDREW J. PEAVEY.

Vitnesses:

FRANK G. PARKER, ALFRED J onus.

